Finding the Fourth Proportional to 20,925,543.36, 28,891,341.36 and 18,713,542.80
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Solution
The fourth proportional to 20,925,543.36, 28,891,341.36 and 18,713,542.80 is: 25,837,291.00
Step by Step Solution
- Step 1: Write the proportion equation
20,925,543.36 : 28,891,341.36 = 18,713,542.80 : x - Step 2: Convert to fraction form
20,925,543.36/28,891,341.36 = 18,713,542.80/x - Step 3: Cross multiply
20,925,543.36x = 28,891,341.36 × 18,713,542.80 - Step 4: Simplify right side
20,925,543.36x = 540,659,353,089,770.19 - Step 5: Solve for x
x = 540,659,353,089,770.19/20,925,543.36 - Step 6: Final answer
x = 25,837,291.00
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.